<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>列表渲染-练习</title>
    <style></style>
  </head>
  <body>
    <div id="root"></div>

    <script src="./js/react.development.js"></script>
    <script src="./js/react-dom.development.js"></script>
    <script src="./js/babel.min.js"></script>

    <script type="text/babel">
      // ul 与 li 的结构显示数组中的元素
      let frames = ["Vue", "React", "Angular", "YYY", "ABC"];                                                   //  [<li>Vue</li>, <li>React</li>, <li>Angular</li>]

      //创建虚拟 DOM 对象
      let vdom = <div>
          <h2>前端三大框架</h2>
          <ul>
            {
              //[React.createElement('li',null,'Vue'), React.createElement('li',null,'React'), ]
              frames.map((item, index) => {
                return <li key={index}>{item}</li>;
              })
            } 
          </ul>
        </div>;

      //渲染
      ReactDOM.render(vdom, document.querySelector('#root'))
      
    </script>
  </body>
</html>
